Multi-cell battery charging system and control method
US12021402B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2021 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Dec 16, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/158
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method includes turning on a first group of switches of a switched capacitor converter in a battery charging system to establish a first conductive path, and configuring a system voltage at a system bus to charge a first flying capacitor to a predetermined voltage level through the first conductive path, wherein the predetermined voltage level is less than the system voltage, and turning on a second group of switches of the switched capacitor converter in the battery charging system to establish a second conductive path to charge a battery, wherein a sum of a voltage across the first flying capacitor and the system voltage is applied to the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.